html,
body {
    height:100%;
}
.page_content {
    height:100%;
   
    > p {
        font-size:18px;
        > strong {
            font-size:24px;
        }
        a {
            font-weight:600;
            color:#000;
        }
    }
}
.page_content {
    min-height: 100%;
    display: flex;
    flex-direction: column;
    align-items: stretch;
}

main {
    flex-grow: 1;
}
footer {
    img {
        width:120px;
        margin-top:-10px;
        padding-left:10px;
    }
}
header, main, footer {
    flex-shrink: 0;
    
}